DocumentationDatasheet
Reliability Data
Product Selector Card
Software and Simulation
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Features
- Integrated Dual 12-Bit ADCs
- Sample Rate: 65Msps/40Msps/25Msps
- Single 3V Supply (2.7V to 3.4V)
- Low Power: 400mW/235mW/150mW
- 71.3 dB SNR
- 90dB SFDR
- 110dB Channel Isolation at 100MHz
- Multiplexed or Separate Data Bus
- Flexible Input: 1VP-P to 2VP-P Range
- 575MHz Full Power Bandwidth S/H
- Clock Duty Cycle Stabilizer
- Shutdown and Nap Modes
- Pin Compatible Family
105Msps: LTC2282 (12-Bit), LTC2284 (14-Bit)
80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit)
65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit)
40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit)
25Msps: LTC2291 (12-Bit), LTC2296 (14-Bit)
10Msps: LTC2290 (12-Bit), LTC2295 (14-Bit) - 64-Pin (9mm × 9mm) QFN Package
Typical Application
Description
The LTC2293/LTC2292/LTC2291 are 12-bit 65Msps/40Msps/25Msps, low power dual 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2293/LTC2292/LTC2291 are perfect for demanding imaging and communications applications with AC performance that includes 71.3dB SNR and 90dB SFDR for signals at the Nyquist frequency.DC specs include ±0.3LSB INL (typ), ±0.15LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 0.25LSBRMS.
A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.6V logic. An optional multiplexer allows both channels to share a digital output bus.
A single-ended CLK input controls converter operation. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.
9x9 QFN-64
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC2293CUP#PBF | QFN | 64 | C | $24.78 | $18.12 |
| LTC2293CUP#TRPBF | QFN | 64 | C | $18.22 | |
| LTC2293IUP#PBF | QFN | 64 | I | $29.73 | $21.75 |
| LTC2293IUP#TRPBF | QFN | 64 | I | $21.85 | |
| LTC2293CUP | QFN | 64 | C | $49.56 | $36.24 |
| LTC2293CUP#TR | QFN | 64 | C | $36.44 | |
| LTC2293IUP | QFN | 64 | I | $59.46 | $43.50 |
| LTC2293IUP#TR | QFN | 64 | I | $43.70 |
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC816A-I | LTC2293IUP | MUX DUAL ADC, VDD=+3.0V, 65Msps, 12Bit, 1MHz < AIN < 70MHz, (req. DC718) | $200.00 | |
| DC816A-N | LTC2293IUP | MUX DUAL ADC, VDD=+3.0V, 65Msps, 12Bit, 70MHz < AIN < 140MHz, (req. DC718) | $200.00 | |
| DC851A-I | LTC2293IUP | DeMUX DUAL ADC, +3.0V, 65Msps 12-Bit 1MHz < Ain < 70MHz, (req. DC890) | $200.00 | |
| DC851A-N | LTC2293IUP | DeMUX DUAL ADC, +3.0V, 65Msps 12-Bit 70MHz < Ain < 140MHz, (req. DC890) | $200.00 |
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC718C | USB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps) | $300.00 | |
| DC890B | USB Data Acquisition Controller, for PScope Evaluation Kits (up to 250Mbps, CMOS/LVDS) | $300.00 |